diff --git a/lib/Analysis/MemRegion.cpp b/lib/Analysis/MemRegion.cpp
index 78cd814..84fd163 100644
--- a/lib/Analysis/MemRegion.cpp
+++ b/lib/Analysis/MemRegion.cpp
@@ -304,7 +304,7 @@
 
 ElementRegion*
 MemRegionManager::getElementRegion(QualType elementType, SVal Idx,
-                                   const TypedRegion* superRegion){
+                                   const MemRegion* superRegion){
 
   llvm::FoldingSetNodeID ID;
   ElementRegion::ProfileRegion(ID, elementType, Idx, superRegion);